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I'm just going to do it 'till I need glasses. :D

I like the Naniwas for there consistent results. The Nortons are also consistent but the soaking is a minor inconvenience. So far the Naniwas stay flat where my Shaptons need to be lapped before use...

Karl, going by the JIS grit chart I notice that the micron size is close in the lower grits. So a 1k USA hone is roughly equivalent to the same grit in the Japanese hone. Above that you start to see...

Thanks Ray, I had that epiphany after reading this thread here a couple of weeks ago. Rocked my world you might say. :)

Karl, at first glance that is the impression I got too but not quite. First of all if Smokintbird's grit chart is accurate the Shapton pro and glass are the same in microns as the Naniwa and that...

Well if you wanted to have a similar experience as with a Norton 4/8 it would seem from the chart that a 2k or 3 and a 5k would give the same results as the Norton pyramid. Of course the chart...

Here is a post with a link to the comparative grit chart illustrating the point.